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JEE Mains 2026 physics questions with solutions
Browse JEE Mains 2026 Physics questions with solutions. Useful for JEE, NEET, and school exam revision.
Showing 1–10 of 246 questions
- MCQeasyNewtons law of motion and Friction
A spring of force constant 15 N/m is cut into two pieces. If the ratio of their length is 1:3, then the force constant of smaller piece is____N/m
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JEE Mains 202624 January Morning Shift
Open question & full solution → - MCQmediumThermodynamics
The mean free path of a molecule of diameter 5 × 10⁻¹⁰ m at the temperature 41°C and pressure 1.38 × 10⁵ Pa, is given as ____ m.
(Given k(B) = 1.38 × 10⁻²³ J/K).
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JEE Mains 202628 January Evening Shift
Open question & full solution → - NumericmediumElectromagnetic Induction
A conducting circular loop is rotated about its diameter at a constant angular speed of 100 rad/s in a magnetic field of 0.5T perpendicular to the axis of rotation. When the loop is rotated by 30° from the horizontal position, the induced EMF is 15.4 mV. The radius of the loop is ______ mm.
(Take π = 22/7)
JEE Mains 202622 January Evening Shift
Open question & full solution → - MCQeasyThermodynamics
An air bubble of volume 2.9 cm³ rises from the bottom of a swimming pool of 5 m deep. At the bottom of the pool water temperature is 17 °C. The volume of the bubble when it reaches the surface, where the water temperature is 27 °C, is____ cm³.
(g = 10 m/s², density of water = 10³ kg/m³, and 1 atm pressure is 10⁵ Pa)
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JEE Mains 202623 January Evening Shift
Open question & full solution → - MCQmediumThermodynamics
10 mole of an ideal gas is undergoing the process shown in the figure. The heat involved in the process from P₁ to P₂ is α Joule (P₁ = 21.7 Pa and P₂ = 30 Pa, Cv = 21 J/K·mol, R = 8.3 J/mol·K). The value of α is ____.
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JEE Mains 202624 January Evening Shift
Open question & full solution → - MCQmediumThermodynamics
10 kg of ice at -10°C is added to 100 kg of water to lower its temperature from 25°C. Consider no heat exchange to surroundings. The decrement to the temperature of water is ________ °C.
(specific heat of ice = 2100 J/kg·°C, specific heat of water = 4200 J/kg·°C, latent heat of fusion of ice = 3.36 × 10⁵ J/kg)
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JEE Mains 202628 January Morning Shift
Open question & full solution → - MCQeasyCurrent electricity
A moving coil galvanometer of resistance 100 Ω shows a full scale deflection for a current of 1 mA. The value of resistance required to convert this galvanometer into an ammeter, showing full scale deflection for a current of 5 mA, is _____ Ω
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JEE Mains 202624 January Evening Shift
Open question & full solution → - MCQmediumProperties of solid and fluid
Two wires A and B made of different materials of length 6.0 cm and 5.4 cm, respectively and area of cross sections 3.0 × 10⁻⁵ m² and 4.5 × 10⁻⁵ m², respectively are stretched by the same magnitude under a given load. The ratio of the Young's modulus of A to that of B is x : 3. The value of x is ______.
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JEE Mains 202628 January Morning Shift
Open question & full solution → - MCQmediumThermodynamics
The volume of an ideal gas increases 8 times and temperature becomes (1/4)th of initial temperature during a reversible change. If there is no exchange of heat in this process (ΔQ = 0) then identify the gas from the following options (Assuming the gases given in the options are ideal gases) :
Options
JEE Mains 202622 January Morning Shift
Open question & full solution → - MCQmediumWave Motion
The speed of a longitudinal wave in a metallic bar is 400 m/s. If the density and Young's modulus of the bar material are increased by 0.5% and 1% respectively then the speed of the wave is changed approximately to _____ m/s.
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JEE Mains 202628 January Evening Shift
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